Recent theories on fiscal decentralization support the view that sub-national governments who finance a larger share of their spending with taxes raised locally by themselves are more accountable towards their citizens. Whilst evidence on improvements in spending efficiency is relatively common,...

The paper presents the main characteristics of BETAMOD, a static microsimulation model that reproduces the Italian personal income tax (IRPEF), as well as local income taxes, namely the regional and municipal additional income taxes, building on a detailed reconstruction of tax legislation. With...